The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2009
Filed:
Jun. 19, 2006
Hiroyuki Abe, Kawasaki, JP;
Hiromichi Akamatsu, Tokyo, JP;
Akira Sasaki, Kanagawa, JP;
Masashi Shinada, Saitama, JP;
Yuta Saito, Tokyo, JP;
Hiroyuki Abe, Kawasaki, JP;
Hiromichi Akamatsu, Tokyo, JP;
Akira Sasaki, Kanagawa, JP;
Masashi Shinada, Saitama, JP;
Yuta Saito, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Mahle Filter Systems Japan Corporation, Tokyo, JP;
Abstract
A sound increase apparatus includes a partition wall adapted to divide an engine room for defining a first engine room space that is located on a side of a dash panel and a second engine room space in which an engine is installed, and a first pressure fluctuation amplification unit inter-communicating an engine inlet pipe arranged in the second engine room space and the first engine room space. The first pressure fluctuation amplification unit amplifies a pressure fluctuation of a first frequency selected from a plurality of frequencies when pressure of air residing inside the engine inlet pipe fluctuates at the plurality of frequencies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile